The definition of ay is a word used to show sorrow or upset.
An example of ay used as an interjection is in the sentences, "Ay! I can't believe he was late for school again!"
Chiefly North Eng. used to express sorrow, distress, etc.: used chiefly in the phrase ay me!
Variant of aye1.
Variant of aye2.
Used before me to express distress or regret.
- academic year
- (text messaging) ay up